Lenze E82xVxxxKxxxxx - Manual (Page 500)

Safety engineering
Functional test
Monitoring the safety function with a PLC
14
l
500 EDS82EV903 EN 3.0
14.4.3 Monitoring the safety function with a PLC
K
SR
µC
PWM
PWM
CINH
DIGOUT
DC 24 V
Z2
Z1
8200 vector
S1 S2
IN 1
IN 2
IN 3
IN 4
34
X3.1
33
K32
K31
28
Ax
&
8200vec111
Fig. 14−4 Circuit diagram for monitoring the safety function with a PLC
S1, S2 Separate options for disconnecting the two disconnecting paths
K
SR
Safety relay
X3.1/34 Control of safety relay
X3.1/33 Control of safety relay (GND)
X3.1/K32 Positively driven feedback contact (24 V)
X3.2/K31 Positively driven feedback contact
Z1
Standard I/O or application I/O
Ax Digital output for motor current evaluation
CINH Controller inhibit
Z2 Programmable logic controller (PLC)
IN 1 − 4 Digital inputs
Requirements
The following conditions must be met:
ƒ The PLC must be programmed such that the complete system is set to a safe state
immediately when the function check leads to an impermissible state.
ƒ The parameter setting of a digital output must be such that you can conclude to the
output current I
motor
of the drive (see parameterisation example).